I just bought two Sarracenea. Cannot tell you for sure which, they were labled purple pitcher plant. They are definitely not purple pitcher plants. If I had to guess, I'd say they are closer to S. leucophylla. Anyway, they came in only LFS as the "soil". I normally use 50/50 sphagmum and perlite, will they do well in just LFS as the "soil" or should I re-pot them right away?